examines777tk

INSTALLATIONINSTRUCTIONSFORTHEMODEL777ELECTRONICOVERLOADRELAYBESUREPOWERISDISCONNECTEDPRIORTOINSTALLATION!
FOLLOWNATIONAL,STATEANDLOCALCODES.
READTHESEINSTRUCTIONSENTIRELYBEFOREINSTALLATION.
TheModel777isasolid-state(electronic)overloadrelay.
Itisfullyprogrammableforcustomizedprotectionandisdesignedtoprotect3-phasesystemswithoperatingvoltagesof190-480VAC(500-600VACfortheModel777-575).
TheoutputrelayisaFormCcontact,whichcancontrolacontactororotherdevicewithintheoutputrelaycontactrating.
Theunitcanbeprogrammedpriortoinstallationbyapplying120VACtoterminalsL1andL2(exceptModel777-575).
Theunitcannotbetestedforproperoperationusingthisvoltage.
Fortestingpurposes,3-phasepowerneedstobeusedwithaminimumvoltageof190VAC(450VACfortheModel777-575).
CONNECTIONS1.
Disconnectpowerandverifypowerisoff.
2.
UsingthefourcornertabsortheDINrailmount,installthe777directlyaboveorbelowthecontactor.
TousetheDINrailmount,hookthetopclipfirstthenapplydownwardpressureuntilthelowerclipsnapsontotherail.
3.
A)Foramperagesfrom26-90amps,insertthemotorconductorsthroughtheholesmarkedA,B,andC.
Makecertaintheconductorthrougheachholecorrespondstotherightmotorconductor,i.
e.
theAphaseconductorshouldgothroughtheAroundhole.
SeeFigure1foratypicalwiringdiagram.
B)Foramperageslessthan26amps,loopthemotorconductorsaccordingtoTable1.
Figure3showsanexampleoftheloopingrequiredforcurrentrangingfrom8.
1-12amps(MULT=3).
C)Foramperagesgreaterthan90amps,externalCTs(currenttransformers)arerequired.
SymComrecommendsCTswithterminalsbeusedforeaseofinstallation.
AllCTsecondariesmustmakefivepassesthroughtheroundholesontheMotorSaver.
SeeFigure2foratypicalwiringdiagramusingexternalCTs.
NOTE:PaycloseattentiontothisdiagramtoeliminateanypowerfactorerrorswhencommunicatingwiththedevicethroughtheRS-485network.
4.
Connectthe3-phasepowerfromthelinesideofthecontactortoL1,L2,andL3terminalsusing12-18AWGcopperwire.
Theseshouldbetightenedtonomorethan7inchlbs.
5.
Connectthecontrolcircuitwirestotheappropriateterminals.
Therelayisdesignedforfail-safeoperation,thustheNO(normallyopen)contactshouldbeinserieswiththecoilonthecontactorformotorcontrol(seeFigure1).
Foralarmcircuits,theNC(normallyclosed)contactisinserieswiththealarmcircuitry.
2880NorthPlazaDriveRapidCity,SD57702·(800)843-8848-2-1/05Table1:WiringConfigurationBasedonMotorFullLoadAmpsFigure1:TypicalWiringDiagramforFLAof26-90RecommendedFullLoadAmpsOCRange(Amps)UCRange(Amps)#ofPassesthrougheachWindowMULT(CTRatio)2-2.
52-100,1-9.
810102.
5-32.
22-11.
10,1.
11-10.
8993-3.
52.
5-12.
50,1.
25-12.
2883.
5-42.
85-14.
20,1.
42-14774-53.
33-16.
60,1.
66-16.
3665-64-200,2-19.
6556-85-250,2.
5-24.
5448-126.
66-33.
30,3.
33-32.
63312-2510-500,5-492225-9020-1000,10-981180-11080-1400,40-1205100(100:5)110-160120-2100,60-1805150(150:5)160-220160-2800,80-2405200(200:5)220-320240-4200,120-3605300(300:5)320-420320-5600,160-4805400(400:5)400-520400-7000,200-6005500(500:5)480-600480-8400,240-7205600(600:5)540-700560-9800,280-8405700(700:5)560-800640-9920,320-9605800(800:5)-3-1/05Figure2:TypicalWiringDiagramUsingExternalCTs.
Figure3:LoopingExampleShowingThreeConductors(MULT=3fromTable1)(Noothernecessaryconnectionsareshown.
)-4-1/05PROGRAMMABLEPARAMETERSThefollowingsettingsMUSTbeprogrammedbytheuserinordertoprovideproperprotectionfortheapplication.
AllparametersareactualvaluesexceptfortheVUBandCUBsettings;theseareprogrammedaspercentages.
Therangeeachparametercanbeprogrammedtoisfoundontheelectricalspecificationstableonpage13.
Seepage8forprogrammingexamples.
LV/HV-TherecommendedsettingsforLV(lowvoltage)andHV(highvoltage)accordingtotheNEMAMG1standardare±10%ofthemotorsnameplatevoltage.
Forothersettings,themotormanufacturershouldbecontacted.
Example:Themotornameplatevoltageis230volts.
90%and110%of230is0.
9x230=207voltsfortheLVsettingand230x1.
1=253voltsfortheHVsetting.
Theseparametersarebasedontheaveragevoltagegoingtothemotor.
VUB-VUB(voltageunbalance)isfactorysetat6%.
TheNEMAMG1standardsaysamotorshouldnotbeoperatedabovea1%voltageunbalancewithoutderatingthemotor.
Mostutilitysuppliedpowersourceshaveadifficulttimesustaininga1%VUB.
ThemotormanufacturershouldbeconsultedforanexactVUBsetting.
Asettingof999forVUBwilldisabletheVUBprotectionbutwillnotdisableSP(single-phaseprotection).
TheVUBiscalculatedasfollows:%VUB=[(Maximumdeviationfromtheaverage)/Average]x100%Example:Measuredline-linevoltages=203,210,and212,sotheaverage=(203+210+212)/3=208.
3,themaximumdeviationfromtheaverageisthebiggestdifferencebetweentheaveragevoltage(208.
3)andanyonevoltagereading,212-208.
3=3.
7,210-208.
3=1.
7and208.
3-203=5.
3,thereforethemaximumdeviationfromtheaverageis5.
3.
TheVUBisthen=5.
3/208.
3x100=2.
5%.
MULT-MULT(multiplier)settingisfoundonTable1.
TheMULTsettingisdeterminedbythecurrenttheunitwillbemonitoring.
Thisallowstheunittodisplaythecorrectcurrent.
ChangingthissettingwillalsochangetheUC,OC,andGFsetpoints.
OC-OC(overcurrent)isusuallysetattheservicefactoramperage(typically100-115%ofmotorFLA)ofthemotor,whichisdeterminedbythemotormanufacturer.
IfanyonelegofcurrentexceedstheOCsetting,theunitwillfollowitsoverloadtripcurve(seeFigure4).
UC-UC(undercurrent)istypicallysetat80%ofthefull-loadamperageofthemotor.
Thisisusuallyadequateforprotectionoflossofloadformanypumpsandmotors,includingsubmersibles.
IfthemotorisnotpullingnearfullloadamperagethentheUCmayhavetobesettosomethinghigherthan80%ofFLAforadequateprotection.
UCcanbesetto0ifUCprotectionisnotdesired.
TheUCtrippointexaminesaveragecurrenttodetermineifanundercurrenttripconditionexists.
CUB-CUB(currentunbalance)isfactorysetto7%.
SymComrecommendsthemotormanufacturerbecontactedforanexactsetting.
TheCUBiscalculatedthesamewaytheVUBisdeterminedabove.
TheCUBprotectioncanbedisabledbyprogramminga999inthissetting.
Thiswilldisablecurrentunbalanceprotectionandcurrentsinglephasingprotection.
TC-TC(tripclass)istheparameterusedtodeterminewhentheunitwilltripwhenanoverloadconditionisdetected.
Forstandardmotors,theTCistypicallysetat20.
ThemotormanufacturershouldbecontactedforexactTCsettings.
Table2andFigure4showtheTCsettingsandtriptimes.
-5-1/05RD1-RD1(restartdelayone)istherapid-cycletimerinseconds.
Thistimerisinitiatedwhenpowerisfirstappliedtotheunit.
IfvoltagesarewithintheprogrammedlimitsandnoSP(single-phase)orRP(reverse-phase)conditionexistswhenpowerisappliedtothedevice,theoutputrelaywillenergize(theNOwillcloseandtheNCwillopen)assoonasRD1expires).
Typically,thisissetto20-30seconds.
Thiswillprovideadequateprotectionforsuccessivepoweroutagesorshortcyclingcausedbyothermotorcontrols.
Thistimerisalsoinitiatedwhenanothercontrolshutsthemotoroff(currentgoestozero).
Iftheuserdoesnotwanttheunit'srelaytode-energizewhenanothercontrolshutsthemotoroff,thenRD1shouldbesettozero.
Thiswillalsoensurethatwhenanalarmcircuitisused,analarmwillsoundonlywhenthereisatrueproblemorwhenpowerislost.
RD2-RD2(restartdelaytwo)istherestarttimer,inminutes,usedwhentheunithasshutoffduetoacurrentunbalance,currentsinglephasing,oranoverloadcondition.
Thistimerisknownasamotorcool-downtimer.
Asettingof5-10minuteswillgivemostmotorsadequatetimetocooldownafteranoverloadcondition.
Themotormanufacturershouldbecontactedforanexactvalue.
RD3-RD3(restartdelaythree)istherestarttimer,inminutes,usedafteranundercurrenttrip.
Itisalsoknownasadry-wellrecoverytimerinpumpingapplications.
Thiswouldbethetimeittakesawelltorechargeafterpumpingdry.
Thissettingvarieswidelyfromapplicationtoapplicationandthereisnotypicalsetting.
#RU/ADDR-The#RU/ADDRisadualfunctionsetting.
The#RUsettingscoverfromthe7o'clockpositiontothe11o'clockposition.
ADDRsettingsstartafterthe11o'clockposition.
#RUisthenumberofrestartsafteranundercurrenttripconditionbeforetheunitlocksandrequiresamanualrestart.
Thiscounterwillbeclearedoneminuteafterstart-upiftheunitdoesnottripagainonUC.
#RUcanbesetto0,1,2,3,4,orA.
Asettingofzeromeansnoautomaticrestartsafteranundercurrent.
Asettingof"A"meanstheunitwillalwaysautomaticallyrestartafteranundercurrent.
ADDRistheRS-485addressoftheparticulardevice.
ThisisonlyusedwhencommunicatingwithanRM-2000(setADDR=A01),aPLC,orPC.
TheADDRcanbeprogrammedfromA01-A99.
#RF-#RFisthenumberofrestartsallowedafteracurrentunbalance,currentsinglephasing,oranoverloadcondition.
Asetting,whichincludesan"oc"prefix,willincludeovercurrentinthenumberofsuccessiverestarts.
If"oc"isnotaprefixtotheprogrammedsetting,theunitwillrequireamanualrestartafteranovercurrent.
AsettingofzeromeanstheunitwillnottrytorestartafteraCUB,OC,orSP.
Asettingof"ocA"meanstheunitwillalwaystrytorestartafteraCUB,OC,orSP.
UCTD-UCTD(undercurrenttripdelay)istheamountoftime,inseconds,theunitwillallowthemotortoruninanundercurrentsituationbeforede-energizingitsrelay.
Typically,UCTDissetto2-4seconds.
GF-GF(groundfault)isthemaximumallowablecurrent,whichcanflowtogroundbeforetheunitde-energizesitsrelay.
Thisisaresidual,classIIgroundfaultsystemandshouldnotbeusedforpersonnelsafety.
Atypicalsettingforthisis10%-20%ofthemotorfullloadcurrent.
TherealGFcurrentlevelisprogrammedintotheunit.
TheGFtestprocedureonthelastpageoftheinstallationinstructionsmustbeconductedbeforethedeviceisbroughtonline.
-6-1/05PROGRAMMING1.
RotatetheMODESELECTswitchtotheparametertobeprogrammed.
SymComrecommendsthatLVbeprogrammedfirstandthenmoveclockwisethroughthepositionstocompletetheprocess.
2.
PressandholdtheRESET/PROGRAMbutton.
3.
RotatetheDISPLAY/PROGRAMknobuntilthepropersettingfortheparameterthatisbeingprogrammedisdisplayed.
4.
ReleasetheRESET/PROGRAMbutton.
Thisstoresthenewparameterinthenonvolatilememory.
Ifthenumberchangesbacktowhatiswasbeforeprogramming,thenthetamperguardisonandwillneedtobeunlockedbeforeprogrammingcanbecompleted.
(Seepage14fortamperguardprocedures.
)5.
Continuesteps1-4untilallparametersareprogrammed.
OPERATIONTherelayoperationoftheModel777isdesignedtobefailsafe.
Thismeanswheneverythingiswithinthelimitsprogrammedintotheunit,therelaywillenergize,theNOcontactwillcloseandtheNCcontactwillopen.
Oncetheunithasbeenwiredandprogrammed,theunitisreadytooperate.
TurnMODESELECTtotheRUNposition.
Thedisplaywillshow"run"alternatingwithsomenumber(thenumbersdisplayedwillbethenumbercorrespondingtowheretheDISPLAY/PROGRAMknobispointed).
ItwilldothisfortheamountoftimeprogrammedintoRD1.
Afterthistimehasexpired,therelaywillenergize(NOcontactwillcloseandtheNCcontactwillopen).
Ifsomethingelseisinthedisplay,seethetroubleshootingsectionformoreinformation.
IftheMODESELECTistakenoutoftheRUNposition,theunitsrelaywillde-energize.
-7-1/05TripClassApplicationDescription5Smallfractionalhorsepowermotorswhereaccelerationtimesarealmostinstantaneousorwhereextremelyquicktriptimesarerequired10(FastTrip)Hermeticrefrigerantmotors,compressors,submersiblepumpsandgeneral-purposemotorsthatreachratedspeedinlessthan4seconds.
15Specializedapplications.
20(StandardTrip)MostNEMA-ratedgeneral-purposemotorswillbeprotectedbythissetting.
30(SlowTrip)Motorswithlongaccelerationtimes(>10seconds)orhighinertialoads.
JPrefixProgramminganyofthetripclasseswiththeJprefixwillenablejamprotection.
Thisadditionalprotectionisenabled1minuteafterthemotorstartsandprovidesa2secondtriptimeformotorsexceeding400%oftheOCsetting,regardlessoftripclass.
Table2:TripClassDescriptionsFigure4:OverloadTripCurves-8-1/05PROGRAMMINGEXAMPLESExample#1Motortobeprotected:3-phase,460Volt,25hpaircompressorwithafullloadamperageratingof34Aandmaximumservicefactorampsof37.
4.
Usethefollowingcalculationsandreasoningtodeterminetheappropriatesettingsforthisapplication.
LV-460x0.
90=414HV-460x1.
10=506VUB-StandardNEMAmotor=5MULT-FromTable1=1OC-ServiceFactorAmperage=37.
4UC-FLAx0.
80=34Ax0.
80=27.
2CUB-StandardNEMAmotor=5TC-Generalpurposemotor=20RD1-Sincethiscompressortakesabout10secondstobleedoffexcesspressureafterashutdown,settingRD1=20willallowthecompressortounloadbeforebeingrestarted.
RD2-Becausethemotormaybehotfromrunninginanunbalanceorsinglephasecondition,amotorcool-downtimeof10minutes,RD2=10,shouldbeappropriate.
RD3/#RU-Becauseanundercurrentwouldsignalaseriousprobleminthisapplication(abrokenshaftorbelt),#RUshouldbesetto0foramanualreset.
Therefore,RD3doesnothaveanyfunction#RF-Becauseanoverload(overcurrent)faultsignalsaseriousprobleminthisapplication(e.
g.
,wornbearings),"oc"shouldnotbeincludedinthe#RFsettingsothatamanualresetafteranoverloadfaultisrequired.
A#RF=1willgivethesystem1chancetorecoverfromanunbalanceorsinglephasingproblembeforemanualresetisrequired.
UCTD-SettingUCTD=5willallownormaloperationandnotallowthemotortoruntoolonginafailuremode.
GF-Agroundfaultsettingof15%offullloadampswillbeasignificantindicatorthatthemotorshouldbeevaluatedforrepairorreplacement.
Therefore,GF=34Ax0.
15=5.
1.
Example#2Motortobeprotected:3-phase,230Volt,5hpsubmersiblepumpwithafullloadamperageof15.
9Aandmaximumservicefactorampsof18.
2.
Usethefollowingcalculationsandreasoningtodeterminetheappropriatesettingsforthisapplication.
LV-230x0.
90=207HV-230x1.
10=253VUB-Manufacturersuggests5MULT-FromTable1,MULT=2,1loopofmainconductorOC-ServiceFactorAmperage=18.
2UC-FLAx0.
80=15.
9x0.
80=12.
7CUB-Manufacturersuggests5TC-FromFigure3,forthis(andmost)submersiblepumps,TC=10(fasttrip)RD1-Toprotectthepumpfromrapidcycling,RD1=60-9-1/05RD2-Sincethemotorissmallandsubmergedinwater,themotorwillgenerallycooldownquickly.
RD2=5RD3-Thewellhistoryshowsthatitwillfullyrecoverin2hours.
RD3=120#RU-Inthisapplication,weknowthatthewellwilleventuallyrechargeitself,#RU=A(Automatic).
#RF-Thiswellisknownforsandtojamtheimpeller,therefore"oc"shouldbeincludedsothatthepumpwillattempttoautomaticallyrestartafteranoverloadedcondition.
Historyshowsthat2or3startsandstopsusuallyclearsthesandoutoftheimpeller.
#RF=oc2oroc3.
UCTD-Thiswellmaybecomeairlockedonstartup,butwillusuallyre-primeitselfin5secondsorless.
UCTD=10GF-Becausethistypeoffaultindicatestheimpendingfailureofthemotoranditmaytakeseveraldaystogetanewpumpandscheduleforadrillertoremoveandreplacethepump,GFsettingof10%offullloadamperagewillgivethewellownerenoughtimetoprepareforpumpreplacement.
GF=15.
9Ax0.
10=1.
59SYSTEMDISPLAYTheoutputdisplaycanshowoneofthefollowingparameterswhentheMODESELECTswitchisintheRUNposition:averagevoltageorcurrent,eachlinecurrent,oreachindividualline-linevoltage.
Thedisplayisalsousedforprogrammingtheoperatingparametersofthedevice.
Thedisplayalsoidentifieswhatcausedtheunittode-energizeitsrelayorwhatiskeepingtheunitfromenergizingitsrelay.
Thelastfault(notthecurrentfault)canbedisplayedbypressingandholdingtheRESET/PROGRAMbuttonwhiletheMODESELECTswitchisintheRUNposition.
Whentheunittripsofforisholdingthemotoroff,thecurrentfaultconditionwillbeshowninthedisplaywithoutpressingthebutton.
Table3belowliststhefaultcodestheunitcoulddisplay.
DisplayedMessageMeaningocTrippedonovercurrentSPTrippedoncurrentsinglephasingorunitwon'tstartbecausethevoltageissinglephasedubTrippedoncurrentunbalanceorunitwon'tstartbecausethevoltageisunbalanceducTrippedonundercurrentCFTrippedoncontactorfailureGrFTrippedongroundfaultHIAhighvoltageconditionexistsLoAlowvoltageconditionexistsrPIncomingphaseshavebeenreversed,themotormayrunbackwardsifstartedoFFAstopcommandwasissuedfromaremotesourceTable3:FaultCodesandTheirMeaning-10-1/05COMMUNICATIONSPORT/REMOTERESETTheunitcomeswitha9-pinsub-Dconnectorforremotecommunicationsand/orforusingaremotelylocatedresetbutton.
Ifcommunicationsaredesired,acommunicationmodule(partnumberRS485MS-2W)needstobepluggedintothis9-pinconnector(thisismandatorywhencommunicatingwiththeunit).
Thismoduleprovidesisolation,signalconditioningforcompatibilitywithModbusRTUandRS-485networks,andprovidesterminalsforterminatingtheshieldedcommunicationscable.
Upto99unitscanbeinstalledononeRS-485network.
Furtherinformationcanbeobtainedathttp://www.
symcominc.
comorbycallinginarequest.
Aremoteresetbuttoncanbehookeduptothecommunicationsmodule(pnRS485MS-2W)orcanbehookeddirectlytothe9-pinconnectorusingamalesub-Dconnector.
ItshouldbewiredasshowninFigure5.
Figure5:RemoteResetButtonWiringDiagram-11-1/05TROUBLESHOOTINGTheMotorSaverwilldisplayafaultcodealternatingwithanumberorwith"run"whenitisinatripcondition.
Iftheunitisshowingafaultcode(seeTable4)alternatingwith"run,"ithastrippedonacurrent(amperage)condition.
Ifthefaultcodeisalternatingwithsomenumber(voltagereadingorzero),theunitwillnotallowthemotortostartbecausethereisaproblemwiththeincomingvoltage.
Ifthedisplayisshowingjustafaultcode,theunitisinamodethatrequiresamanualreset.
Thiscouldbebecausethenumberofrestarts(#RF,#RU)hasexpiredorisnotallowed.
Ifthedisplayreads"off,"astopcommandwasissuedthroughthecommunicationsnetwork.
PROBLEMSOLUTIONTheunitwillnotstart.
Displayalternates"rP"withtheDISPLAY/PROGRAMparametervalue.
Thevoltageinputsarereversephased.
Ifthisistheinitialstart-up,swapanytwooftheleadsconnectedtoL1,L2,orL3onthe777tocorrecttheproblem.
Iftheoverloadrelayhasbeenpreviouslyrunning,thepowersystemhasbeenreversephased.
Checkthephasesequenceoftheincomingpowerlines.
Note:L1mustbetappedfromconductorPhaseA,L2fromB,andL3fromCforcorrectpowerfactormeasurementsonremotecommunications.
Theunitwillnotstart.
Displayalternates"SP","ub","HI",or"Lo"withtheDISPLAY/PROGRAMparametervalue.
TheincomingvoltageisnotwithinthelimitsprogrammedintheVUB,HV,andLVsettings.
AdjusttheDISPLAY/PROGRAMswitchtoreadtheincominglinevoltagevalues.
Correcttheincomingpowerproblemandcheckprogrammedlimitstoverifytheyarecorrect.
Displayalternates"SP","ub",or"oc"with"run.
"TheoverloadrelayhastrippedonthefaultshownontheLEDdisplayandistimingdownRD2beforerestarting.
Displayalternates"uc"with"run.
"TheoverloadrelayhastrippedonundercurrentandistimingdownRD3beforerestarting.
Ifundercurrentisnotanormalconditionforthisinstallation,checkforbrokenshafts,brokenbelts,etc.
Displayisshowingasolid"SP","ub",or"oc.
"Theunithastrippedonthefaultshownandamanualresetisrequiredbecauseoftheprogrammedsettingin#RF.
Checkthesystemforproblemsthatwouldproducethesingle-phase,overloadorcurrentunbalancefault,suchasajam.
Displayisshowingasolid"uc.
"Theunithastrippedonundercurrentandamanualresetisrequiredbecauseofthesettingin#RU.
Checkthesystemforproblemsthatwouldproducealossofloadsuchasabrokenbeltoralackofliquidtopump.
Displayisshowingasolid"CF.
"Theunithastrippedoncurrentsinglephasing,butwasnotsinglephasedbytheincomingvoltage.
Checkfordamagedcontactsorloosewiring.
Displayisshowingasolid"GrF.
"AgroundfaultcurrentgreaterthantheprogrammedGFvaluehasbeendetected.
Amanualresetisrequired.
Checkthemotorforinsulationbreakdown.
Table4.
Troubleshooting-12-1/05MODEL777SPECIFICATIONSElectricalInputVoltage200-480VAC,3-phase(Standard)500-600VACforModel777-575Frequency50-60HzMotorFullLoadAmpRange2-25A,3-phase(Loopedconductorsrequired)25-90A,3-phase(Direct)80-800A,3-phase(ExternalCTs)PowerConsumption10W(Maximum)OutputContactRatingSPDT(FormC)Pilotdutyrating:480VA@240VACGeneralpurpose:10A@240VACExpectedLifeMechanical1x106operationsElectrical1x105operationsatratedloadAccuracyat25°C(77°F)Voltage±1%Current±3%(Compliancetoalevelof6kVline-to-lineHi-potentialTestMeetsUL508(2xratedV+1000Vfor1minute)VibrationIEC68-2-6,10-55Hz,1mmpeak-to-peak,2hours,3axisShockIEC68-2-27,30g,3axis,11msduration,half-sinepulseMechanicalDimensions3.
0"Hx5.
1"Dx3.
6"WTerminalTorque7in.
lbs.
EnclosureMaterialPolycarbonateWeight1.
2lbsMaximumConductorSizeThrough7770.
65"withinsulationEnvironmentalTemperatureRangeAmbientOperating:-20°-70°C(-4°-158°F)AmbientStorage:-40°-80°C(-40°-176°F)PollutionDegree3ClassofProtectionIP20,NEMA1RelativeHumidity10-95%,non-condensingperIEC68-2-3ProgrammableOperatingPointsRangeLV-LowVoltageThreshold170V(450V*)-HVSettingHV-HighVoltageThresholdLVSetting-528V(660V*)UB-VoltageUnbalanceThreshold2-15%or999%MULT-#ofConductorsorCTRatio(XXX:5)1-10Conductorsor100-800RatioOC-OvercurrentThreshold(20-100A)÷MULTor80-120%ofCTPrimaryUC-UndercurrentThreshold(0,10-98A)÷MULTor40-100%ofCTPrimaryCUB-CurrentUnbalanceThreshold2-25%or999%TC-OvercurrentTripClass**5,J5,10,J10,15,J15,20,J20,30,J30RD1-RapidCycleTimer0,2-500SecondsRD2-RestartDelayAfterAllFaultsExceptUndercurrent(motorcool-downtimer)2-500MinutesRD3-RestartDelayAfterUndercurrent(dry-wellrecoverytimer)2-500Minutes#RU-NumberofRestartsAfterUndercurrent0,1,2,3,4,A(Automatic)ADDR-RS485AddressA01-A99#RF-NumberofRestartsAfterAllFaultsExceptUndercurrent***0,1,oc1,2,oc2,3,oc3,4,oc4,A,ocAUCTD-UndercurrentTripDelay2-60SecondsGF-GroundFaultCurrentThreshold(3-20A)÷MULTor10-30%ofCTPrimaryorOFFNOTES:SymCom'sOverloadRelaycanbepreprogrammedpriortoinstallationbyapplying120VACbetweentheL1andL2terminals(except575Voltmodel).
Powerappliedmustbe110VACorgreater.
*575Voltmodel.
**IfJPrefixisdisplayedintripclasssetting,jamprotectionisenabled.
***If"oc"isdisplayedinthe#RFsetting,thenovercurrentwillbeincludedasanormalfaultandtherelaywillautomaticallyrestartafterRD2expires,otherwise,manualresetisrequiredafteranovercurrentfault.
-14-1/05CLEARINGLASTFAULTThelastfaultstoredcanbeclearedontheMotorSaverbyfollowingthesesteps:1.
RotatetheMODESELECTswitchtoGF.
2.
PressandholdtheRESET/PROGRAMbutton.
AdjusttheDISPLAY/PROGRAMadjustmentuntil"cLr"appearsonthedisplay.
ReleasetheRESET/PROGRAMbutton.
Toverifythelastfaultwascleared,placetheMODESELECTswitchintheRUNposition.
ThenpressandholdtheRESET/PROGRAMbutton;"cLr"shouldbeonthedisplay.
TAMPERGUARDTheMotorSaver'ssetpointscanbelockedtoprotectagainstunauthorizedprogramchanges.
1.
RotatetheMODESELECTswitchtoGF.
2.
PressandholdtheRESETbutton.
AdjusttheDISPLAY/PROGRAMknobuntil"Loc"appearsonthedisplay.
3.
ReleasetheRESETbutton.
4.
TurnMODESELECTswitchtoRUN.
Theprogramisnowlocked,butallsettingscanbeviewed.
TheunitcanbeunlockedbyfollowingthesamestepsexceptadjusttheDISPLAY/PROGRAMknobto"unL"instep2.
GROUNDFAULTTESTINGPROCEDUREAgroundfaulttestmustbeperformedbeforeinstallingtheMotorSaverasrequiredbyUL1053andNEC,ANSI/NFPA70.
1.
Disconnectpower.
2.
HookupthethreelinevoltagestoL1,L2,andL3asrequiredbytheinstallationinstructions.
3.
Programthedesiredparametersintotheunit.
Fortestpurposes,setMULTto1andGFtotheminimumallowedsetting.
4.
Constructthecircuit,usinganACpowersupply.
Thiscircuitsimulatesagroundfaultconditionbygeneratingacurrentinoneofthephases.
Alternatetestcircuitsmaybeused.
Theonlyrequirementisthecurrentthroughthecurrenttransformermustbebetween115%and150%oftheGFsettingandpassthroughonlyoneCTwindow.
-15-1/055.
ThevaluesofVandRwillbedeterminedbythecurrentrequiredtogenerateaGFtripcondition:I=Vrms/R,whereI=115%ofGFsetting.
6.
PlacetheunitintheRUNposition,apply3-phasepowerandallowtheNOcontacttoclose.
7.
Energizethetestcircuitbypushingandholdingthetestpushbuttonuntiltheunittrips(within8.
5seconds).
Thedisplayshouldshow"GrF"andtheNOcontactsshouldbeopen.
ReleasetheNOpushbutton.
8.
Theresultsofthetestaretoberecordedonthetestformprovidedbelow.
Theformshouldbekeptbythoseinchargeofthebuilding'selectricalinstallationinordertobeavailabletotheauthorityhavingjurisdiction.
9.
Confirmprogrammedparametersandproceedwithinstallationinstructions.
GROUNDFAULTTESTRESULTS*DatePerformedbyResultsLocation*Acopyofthisformshouldberetainedbythebuilding'selectricalforeman.
SymComWarrantsitsmicrocontrollerbasedproductsagainstdefectsinmaterialorworkmanshipforaperiodoffive(5)yearsfromthedateofmanufacture.
AllotherproductsmanufacturedbySymComshallbewarrantedagainstdefectsinmaterialandworkmanshipforaperiodoftwo(2)yearsfromthedateofManufacture.
Forcompleteinformationonwarranty,liability,terms,returns,andcancellations,pleaserefertotheSymComTermsandConditionsofSaledocument.
-16-1/05Visitourwebsiteatwww.
symcominc.
comforourcompletecatalogandnewproductlistings!
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